Unintentional injuries affect millions of Americans each year causing serious loss of health and income. Each year in the US deaths from accidents (and the resulting injuries) number approximately Choose...10,00050,000100,000one million . Between the ages of Choose...1-3410-2530-6065 and older, unintentional injuries are the leading cause of death among all persons. While some accidents and injuries are due to unavoidable events such as natural disasters, the vast majority of unintentional injuries are due to behavioral, social, or economic conditions that are subject to change. Because of this, most unintentional injuries are preventable. The branch of science used to investigate the causes of accidents is Choose...accident prevention accident investigation safety inspection injury epidemiology . Most accidents involve many factors and, in many cases, some aspect of the environment is involved such as wind, rain, or fog. Two behavioral aspects that contribute greatly to many kinds of accidents are Choose...alertness and attention stress and fatigue overeating and snacking using cell phones and CD's . Among all injuries and fatalities, avoidable accidents exceed all other causes of injuries. In many kinds of accidents alcohol is a contributing factor. It is estimated by the National Highway Traffic Safety Administration that Choose...one in two one in three one in four one in ten Americans will be involved in an alcohol-related automobile accident sometime during their lives. Among all automobile accidents, Choose...drinking using cell phones lighting a cigarette speeding is usually the major factor. Pedestrians also are at risk of injury and death from automobiles. About half of all pedestrian injuries and deaths from automobiles involve Choose...persons over age 65 children between the ages of 5-9 teenagers children under the age of two . Home is another place where injuries frequently occur. The two most frequent causes of home injuries are Choose...fire and falls falls and drowning poisonings and firearms falls and poisonings . Children are particularly at risk for drowning and half of all drowning deaths occur in Choose...diving accidents July and August swimming after eating lakes and rivers . Injuries at work result from many causes but jobs in which the same task is repeated over and over may eventually cause Choose...stress-related disorders alcoholism boredom cumulative motion disorders . Some risks cannot be avoided in pursuit of life nor can every accident be prevented. But everyone should evaluate the risks of injuries before undertaking any kind of task, job, or thrill-seeking venture.